Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2006.1965.1969IslamMd. AmirulDasDavid RintuKhalequzzamanS. M.KamalDipak HalimK.M. Abdul102006910An experimental culture of red tilapia was carried out at four stocking densities (0.75,1.0,1.5 and 2 fry m-2) using fries of 2.12 inches in length and 5.37 g in weight in four freshwater ponds providing supplementary feed, periodical fertilization and liming during May and February. After 10 months of stocking the average growth rate, survival rate, production rate and FCR were found to be 50 g/month ,74.75%,1890.67 kg acre-1 and 1:1.42, respectively. The stocking density 1.5 was found to be the best in terms of production rate in extensive method. While stocking density of 2 fry m-2 produced highest biomass. The highest growth rate was found with the lowest density. However, stocking density had no remarkable effect on production rate as maximum production rate was achieved with the density of 1.5. On average net profit was achieved at 41.65%.]]>Gupta, M.V. and M.S. Shah,19921992Hossain, S.M.Z., J.R.V. Corre and C.E. Toledo,1992Penaeus monodon (Fabricius).]]>203542Hussain, M.G.,20042004Kohinoor, A.H.M., M.A. Mazid, M.G. Hussain and M.V. Gupta,1996Oreochromis niloticus X O. mosssambicus) under semi-intensive culture system.]]>22101106Kungvakij, P. and B. Pudadera,1984.pp: 1-11pp: 1-11Kuo, H.,19881988pp: 219221Liao, I.C. and T.P. Chen,19831983pp: 588598Lovshin L.L.,19771977Mazid, M.A.,1996pp: 110pp: 110Pillay, T.V.R.,1993pp: 360-375pp: 360-375Prince S.X.,1985Tilapia.]]>pp: 43-63pp: 43-63